to a stop. As an attachment to the car's wheel, a spinner operates by using one or more roller bearings to isolate the spinner from the wheel, allowing it to turn while the wheel is at rest. The invention of the spinner is credited to James J.D. Gragg of Tulsa, Oklahoma who filed a patent on October 28, 1992 and was issued United States Patent #5,290,094 on March 4, 1994. 1994 CMOS image sensor A CMOS image sensor (complementary metal-oxide semiconductor) is an image sensor consisting of an integrated circuit containing an array of pixel sensors, each pixel containing a photodetector and an active amplifier. Starting at the same point, they have to convert light into electrons by using the CMOS process. CMOS image sensors can be found in digital SLR cameras, embedded web-cams, video cameras, automotive safety systems, swallowable-pill cameras, toys and video games, and wireless video-security networks. The renowned American physicist and engineer Eric Fossum invented the CMOS image sensor while working at NASA's Jet Propulsion Laboratory in Pasadena, California. On January 28, 1994, Fossum filed U.S. patent #5,471,515, which was issued to him on November 28, 1995. 1994 DNA computing DNA computing uses DNA, biochemistry and molecular biology, instead of the traditional silicon-based computer technologies. DNA computing, or, more generally, molecular computing, is a fast-developing interdisciplinary area. Research and development in this area concerns theory, experiments and applications of DNA computing. DNA computing is fundamentally similar to parallel computing in that it takes advantage of the many different molecules of DNA to try many different possibilities at once. Leonard Adleman of the University of Southern California initially pioneered this field in 1994. Adleman demonstrated a proof-of-concept use of DNA as a form of computation which solved the seven-point Hamiltonian path problem. 1994 Segway PT The Segway PT is a two-wheeled, self-balancing, zero-emission, electric vehicle used for "personal transport". Segways have had success in niche markets such as transportation for police departments, military bases, warehouses, corporate campuses or industrial sites, as well as in tourism. The earliest patent resembling the modern Segway PT, U.S. patent #6,357,544, was filed on May 27, 1994 and issued to Dean Kamen on December 30, 1997. Kamen introduced his invention to the public in 2001. 1994 Quantum cascade laser A quantum cascade laser is a sliver of semiconductor material about the size of a tick. Inside, electrons are constrained within layers of gallium